check it http://maluta.github.io/blog/things-todo-with-twitter-archive/

tagcloud.py

#!/usr/bin/python
# -*- coding:utf-8 -*-
import re
import csv
import sys
from pytagcloud import create_tag_image, make_tags
from pytagcloud.lang.counter import get_tag_counts

limit = int(sys.argv[-1])
tweets = csv.reader(open("tweets.csv"), delimiter=',', quotechar='"')

buffer = ""

for tweet in tweets:
    buffer += tweet[5] + "\n"


buffer = re.sub("(http|www|the|a|we|ours|this|some|who|bit.ly)", "", buffer)
buffer = re.sub("@[a-z]*", "", buffer)

output = "clound_large_%d.png" % limit
tags = make_tags(get_tag_counts(buffer), maxsize=85)
create_tag_image(tags[:limit],
                 output,
                 size=(300, 220),
                 fontname='Old Standard TT')

import webbrowser
webbrowser.open(output) # see results